Stump-puller.



J. 0. BROWN.

STUMP PULLER.

APPLICATION FILED IIIAII. 22, I9I5.

l 1 60503. Patented Nov. 9, 1915.

2 SHEETS-SHEET l.

Vl/nmes: l Inventar:

COLUMBIA FLANoGR/IPH co., WASHINUTON, D. c.

1. 0. BROWN.

sTuMP FULLER.

APPLICATION FILED MAR. 22. I9I5. 1,160,038. Patented Nov. 9, 1915.

2 SHEETS-SHEET 2. l

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JOHN O. BROWN, OF ALLERTON, IOW'A.

STUMP-PULLER.

Application led March 22, 1915.

To all whom t may concern Be it known that I, JOHN 0. BROWN, a citizen of the United States, residing Allerton, in the county of `Wayne and State of owa7 have invented certain new and useful improvements in Stump-Fullers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements 1n stump pullers and more particularly to the class having interchangeable parts.

The object of the invention is to provide a stump puller so constructed that the speed or power may be increased or decreased at the will of the operator, by changing the position of the sweep whereby a great saving in time and labor may be effected.

lith this and other objects in view, the invention consists of certain novel features of construction, and the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the accompanying drawings: Figure 1 represents a side elevation of a stump puller constructed in accordance with this invention showing it applied; Fig. 2 is a plan view thereof; Fig. 3 is a longitudinal vertical section taken on the line 3-3 of Fig. 2. Fig. 4 is a sectional view of the drum giving same one-fourth turn from the position shown in Fig. 3; Fig. 5 is a side elevation partly in section of the shaft 13 giving same one-fourth turn from the position shown in Fig. 3. Fig. 6 is a horizontal sectional view taken substantially on the line of Fig. 3.

In the embodiment illustrated a supporting frame is shown comprising a base plate 1 mounted on transversely extending cross bars@ and 3 which project at their opposite ends beyond the opposite sides of said base plate and thus afford a reliable support for the device. Rising from the opposite'ends of the base plate 1 are two standards 4 and 5 to one of which a guy rope 6 is designed to be connected and after being so connected is connected with a suitable support for an'- choring the apparatus in the desired position. The plate 1 is provided with longitudinally spaced bearings 7 and 8 for a purpose to be described.

Atop plate 9 'connects the upper ends of the standards 4 and 5 and is providedv with Specication of Letters Patent.

Patented Nov. 9, 1915.

Serial No. 16,108.

longitudinally spaced bearings 10 and 1l which are positioned to register' with the bearings 7 and 8 in the base plate and which are adapted to interchangeably receive shafts 12 and V13 which are preferably of a length somewhat longer than the distance between the upper ends of the top plate 9 and the lower face of the base plate 1 for a purpose to be described. rlhe upper end of the shaft 12 is enlarged at 15 and this enlargement is provided at its upper end with an integral gear 14. The lower'end of the enlarged portion is provided with a clutch member in the form of notches 16 which are designed to cooperate with a clutch member carried by a drum to be described.

The end of the shaft 12 carrying the gear 141 is provided with a socket 17 which is here shown circular in cross sectional contour but it may be angular if desired and opening from the side walls of this socket 17 are angular recesses 13 which are designed to receive lugs 19 which project laterally from the opposite sides of an axle 20 carried by a sweep 21 as will be hereinafter more fully described. Y

The bearings 7 and 8 in the bottom plate 1 are smaller than those 10 and 11 inthe top plate 9 to adapt them to snugly receive the lower ends of the shafts 12 and 13 while the bearings in the topr plate are designed to receive the enlargement 15 carried by the shaft 12 or a similar enlargement 15 carried by the shaft 13. The shaft 13 is enlarged at' 15 and this enlarged portion is provided at its upper side with an integral gear 25 which is about twice the diameter, more orvless, of that of the gear 14 and is adapted to mesh with said gear 14 when in operative position. This enlargement 15 has angular notches 16 in its inner end to form a clutch member which are adapted to cooperate with a corresponding or coperating clutch member carried by the drum 30. This shaft 13 is also provided in the end which carries lthe gear 25Y with a socket 17 which is similar in shape to the socket 17 of the other shaft 12 and is provided at its opposite sides with angular recesses 18 com-4 municating with the socket and which are designed to receive the lugs 19 of the axle 20 of the sweep 21.

The sweep 21 is provided with a lever 22 herein shown bail or U-shaped with the free ends of the arms thereof secured to cams 23 pivotally mounted on the 'opposite side edges of said sweep 21. VThese cams are adapted to bear against the upper or outer face of the gear carried by the shafttowhich the sweep is applied and to disengage the pins 19 from the notches 18 when the lever 22 is thrown backwardly, whereby the drums may cording to which the drum is to be connected and thereby xedly connect said drum with the shaft and adapt it to be rotated therewith for a purpose tobe described.V This drum30 is provided at its` opposite ends with the usual flanges 32 and 33, the [iange 33'at the upperend ofthe drum having ratchet teeth 34 in its peripheral edge which are designed toy bel engaged by a spring pressed locking dog 35 mounted on the lower face of the top plate 9 near one end thereof and which is designed to lock the drum 30 against unwinding during the changing of the sweep 21 from oneV shaft to the other. A cable 36Y is secured at one end to the drum 30 and is adapted t0 be woundrthereon after the other end thereof has been connected with Vthe stumpy to be extracted and the winding of this cable on said drum produces theV pulling eect on the stump which withdraws it from the ground. .-V Y l n From the above description it will be obvious that vwhen the axle 20 of the sweep 21 is placed in one of the sockets of one of the shafts 12 or 13 that the turning of this shaft will through the intermeshing gears rotate the drum 30 and wind up the cable 36 there- .may

on when turned in one direction and when turned in the op osite direction said cable be unwoun but for unwinding the cable it is desirable to disengage the sweep Y from the apparatus and to unwind it by exverting a'pulling action on the free end there- Y of. When it is desired to rotate-the drum for unwinding the cableA it is preferred that the gears 14 and 25 should be thrown out of mesh so that the shaft only on which the drum is mounted'will be rotated and thereby avoid any unnecessary wear on the parts of the apparatus, and to provide for this purpose a lever 37 is fulcrumed on the top plate 9 at a point adjacent one of the shafts. This lever is fulcrumed intermediately of its Vends and its inner end is designed yto be inserted under the gear adjacent which it is mounted and by exerting a downward pressure on its free outer end this gear will be raised togetherwith the shaft on which it ismounted a sufHcient distance to disengage it from the other gear and the cable may be then freely unreeled without turning the other gear.

With the partsV assembled for speed as shownin Fig. 1 the shaft 12 carrying the small gear 14 is shown extending through the drum 30 and connected therewith by the engagement of'its clutchmember 15 with the cooperating clutch carried by thedrum, said Y drum and shaft 12 being shown mounted in the bearings 7 and 10 of the base Vand-top plates. The' shaft 13 carrying the other gear is shown mounted in the bearingsv 8 and v 11 and the sweep is connected with the socket 17 of said shaft Y13, the axle 20v of` Y said sweep being inserted in said socketl andV rigidly connected therewithby the engagement Vof the laterally extending studs 19 with the recesses 18 adjacent said socket 17.

By the turning of this sweep 21-it willbe obvious that the speed of rotation of theV drum will be twice that of the rotation Vof the shaft 13 with which the sweep Yis connected owing to the Vdierence inthe `size of the two gears ltand 25. y

`When it is desired to produce what may be termed single power the parts remain inf the position shown in Fig. 1 except that the sweep 21 is disengaged. from the shaft 13 and inserted in the socket 17 of the shaft 12 and the shaft 13 with its gear 25/are preferably removed from the bearings'l'l'- and 8 to prevent the unnecessary wearing ofsaid gearV by 'the turning of shaft 12. Y Y

To provide what may be termedA double power the parts being in the position Vshown inFig. 1, the shaft 12 is removed fromA the bearings 7 and 10 and out ofl thedrum 30 and inserted in the bearings 8 and 11 and the shaft` 13 carrying the vlarge gear is insertedin the bearings 7 and 10 and passed through the drum 30 and connected therewith by the engagement of the coperating clutch members carried by said drum andshaft. The Y sweep 21 is thenengaged with the socket17 :f

in the-shaft 12and by turning said sweep .a slow moving action is produced'on the drum and through the meshing of the small gear `with the large gear Ydouble power on the drum'is produced. t l

If desired when the-sweep 21 is changedV from theV socket 17 of the shaft 12 carrying the small gear tothe socket 17 ofshaft 13 carryingthe largevgea'r the directionofmovement of theteam whichv .isv usually` t:

hitched to the free endY ofthe .lever or sweep. 21 is reversed, thus 'producingraneven wear on the-lugs of the sweep and sockets Vand thereby' prolonging thelife of the'iapparatus. From the above description it will vbe obvious that by changing the shafts 12 and `13 and connecting the sweep with one or the other of them as may be desired the speed of rotation of the drum may be increased or f decreased and power applied thereto "correisc spondingly increased or decreased according to the wishes of the operator and that by the use of this apparatus much time may be saved and a great economy in labor may be effected.

I claim as my invention:

l. In a stump puller the combination of a supporting structure having vertically spaced plates provided with registering bearings, shafts for interchangeable engagement with said bearings, gears carried by said shafts, the gear on one shaft being larger than that on the other, each shaft having a socket formed in one end thereof with communicating recesses disposed at the sides of said sockets, a hollow drum adapted to be mounted in fixed relation on one of said shafts, a sweep having an axle extending laterally therefrom and provided with projections, said axle being adapted to be inserted in the socket of one of said shafts and the projections thereon engaged with the recesses communicating with said socket, and a lever fulcrumed on said supporting structure with one end positioned for insertion under an adjacent gear for raising said gear out of intermeshing engagement with the other gear.

2. In a stump puller the combination of vertically spaced plates having registering bearings therein, the bearings in the upper plate being larger than those in the lower, a pair of upright shafts interchangeably mounted in said bearings, said shafts having enlarged upper ends, said enlargements being provided with integral gears at their upper ends and having their lower ends notched, a hollow drum disposed removably around one of said shafts and between said spaced plates, studs projecting inwardly from the inner sides of said drums and positioned to enter the notches on the enlargements of said shafts for locking the drum to the shafts, said drum being provided with an integral annular flange at its upper edge, said ange having ratchet teeth arranged on its periphery, a dog secured to the upper plate and engaging said ratchet teeth for holding the drum against retrograde movement, and an interchangeable sweep arm for revolving either of said shafts.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

J OI-IN O. BROWN. Witnesses:

S. H. HEDRIX, H. B. SoHoL'rz.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

